Teen Boyshort Heavy Flow period pants look and feel like regular underwear but have the power to absorb your period and prevent leaks. This comfortable cotton underwear is quick-drying and super soft, bringing you next level comfort.
This snug fitting range prevents leaks when performing more active movement & sporting activities. The Teen range offers a carefree experience during that time of the month.
- Holds 4 Tampons / 28ml
- Wear For Up to 10 Hours
- Lightweight and Quick-drying
Machine wash max 40°C with mild detergent, hang to dry. No bleach. No tumble dry.
BODY: 95% Cotton, 5% Elastane
GUSSET LINING: 95% Cotton, 5% Elastane
GUSSET: 100% Microfibre, Biodegradable TPU
Our underwear has no added PFAS, and has been successfully tested for harmful substances and certified according to STANDARD 100 by OEKO-TEX®️.
We offer free shipping to all UK customers, regardless of order amount! Next day delivery is also available at checkout.
Orders placed before 12.30pm GMT will be dispatched the same working day. Working days are classed as Monday-Friday.
Ordering from somewhere else?
We offer free worldwide shipping on orders above £75 and express shipping options are available at checkout.
If you're unhappy with your purchase, we'll find a speedy solution for you. We offer returns and exchanges for 30 days, alongside our 60-day money back guarantee if our products don't work as promised (we're that confident!).
How do fluxies work?
Fluxies teen period-proof undies absorb your flow and prevent any 'oops' moments — so you can feel fresh, leak-free and comfy. They look like regular undies, but work like magic!
Tried and tested by over 150,000 people
breathable and super-soft
reusable and washable
Teen Boxer Short
Teen Period Kit
Try them risk-free!
Try Fluxies teen period undies for up to 60 days. If you don't love them, we'll give you your money back — hassle free!
What are people saying?
So happy with these! My daughter loves them....no leaks, very comfy! Coming back for more.....
My daughter started her periods at 10 years old. She is autistic. And was no way near ready for it. But this underwear has been great and made her more confident.
Great first use!
They were so good to have to hand when my first period started
My daughter is autistic and these have taken so much stress away. No more discomfort, no more leaks and embarrassment, less washing for me!
A must try
Transitioning to a life with periods comes with many adjustments but these pants have meant the transition is so much smoother.
Bought these for my 14 year old daughter and she absolutely loved them. Don't think she'll ever use disposable sanitary products again.
Q) Can I wear Fluxies all day without other period products?
A) Yes! Fluxies period pants have three built-in layers that absorb your flow, control odour, and prevent any leaks! Find out more about how period pants work.
Q) How many pairs will I need?
A) We always recommend starting with our Teen Period Kit, which includes all three styles of period undies in one kit. But, you can start with as many as you like!